Finding the Fourth Proportional to 9,313.98, 13,978.89 and 4,929.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,313.98 : 13,978.89 = 4,929.18 : x
2. Step 2: Convert to fraction form
   9,313.98/13,978.89 = 4,929.18/x
3. Step 3: Cross multiply
   9,313.98x = 13,978.89 × 4,929.18
4. Step 4: Simplify right side
   9,313.98x = 68,904,465.01
5. Step 5: Solve for x
   x = 68,904,465.01/9,313.98
6. Step 6: Final answer
   x = 7,397.96